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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef nsCommandManager_h__
#define nsCommandManager_h__
#include "nsString.h"
#include "nsClassHashtable.h"
#include "nsWeakReference.h"
#include "nsICommandManager.h"
#include "nsCycleCollectionParticipant.h"
class nsIController;
template <class E>
class nsCOMArray;
class nsCommandManager final : public nsICommandManager,
public nsSupportsWeakReference {
public:
using ObserverList = nsTArray<nsCOMPtr<nsIObserver>>;
nsCommandManager() = delete;
/**
* @param aWindow An window which is what this command manager lives on.
*/
explicit nsCommandManager(mozIDOMWindowProxy* aWindow);
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(nsCommandManager, nsICommandManager)
NS_DECL_NSICOMMANDMANAGER
/**
* Notify the command manager that the status of a command changed. It may
* have changed from enabled to disabled, or vice versa, or become toggled
* etc.
*/
void CommandStatusChanged(const char* aCommandName);
bool IsCommandEnabled(const nsCString& aCommandName,
mozIDOMWindowProxy* aTargetWindow);
protected:
virtual ~nsCommandManager();
nsresult GetControllerForCommand(const char* aCommand,
mozIDOMWindowProxy* aDirectedToThisWindow,
nsIController** aResult);
protected:
nsClassHashtable<nsCharPtrHashKey, ObserverList> mObserversTable;
mozIDOMWindowProxy* mWindow; // weak ptr. The window should always outlive us
};
nsCommandManager* nsICommandManager::AsCommandManager() {
return static_cast<nsCommandManager*>(this);
}
const nsCommandManager* nsICommandManager::AsCommandManager() const {
return static_cast<const nsCommandManager*>(this);
}
#endif // nsCommandManager_h__
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